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IJTK Vol.07(4) [October 2008]  >


Title: Microbial load on medicinal plants sold in Bini markets, Nigeria
Authors: Idu, M
Omonigho, S E
Igeleke, C L
Oronsaye, F E
Orhue, E S
Keywords: Microbial load
Medicinal plants
Nigeria
Issue Date: Oct-2008
Publisher: CSIR
IPC CodeInt. Cl. ⁸ : A01H15/00
Abstract: Microbiological analysis was carried out on samples of 20 medicinal plants obtained from open markets in Benin and her environs. The standard plate count technique on Nutrient agar (NA) was used to determine the total aerobic bacterial count, mannitol salt agar and Baird-Parker agar for staphylococcal count, MacConkey agar for coliform count and potato dextrose agar for fungal counts. The purified bacterial and fungal isolates were then characterized and identified. All the samples examined contained microorganisms. The bacterial count ranged from 1.0×10³ cfu/g to 9.8×10⁴ cfu/g with Aframomum meleguata, Onyokea gore and Khaya ivorensis having the highest count of 9.8 × 10⁴cfu/g; 9.4 × 10³ cfu/g and 8.8×10³ cfu/g, respectively and Justicia flava had the lowest count of 1.0 × 10³ cfu/g. The fungal counts were high in all the samples examined. The bacterial isolates were identified as Staphylococcus aureus (50.0%), Staphylococcus epidermidis (25.0%), Escherichia coli (10.0%) and Bacillus subtilis (40.0%) while fungal isolates included Aspergillus niger (85.0%) and Penicillium species (50.0%). The presence of these microorganisms in the samples could be due to improper handling and storage procedures as most of the samples were kept in bags on cold floors in very humid tropical stores (stalls).
Page(s): 669-672
ISSN: 0972-5938
Source:IJTK Vol.07(4) [October 2008]

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